All races / PA
MAMMOTH Endurance Gravel 2027 registration date
Wellsboro, PA · May 1, 2027 · not open
Registration opensOct 31, 2026 (time TBA, ET)
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Registration info
| Entry type | open |
|---|---|
| Status (as of Oct 19, 2026) | not open |
| Registration opens | Oct 31, 2026 (time TBA, ET) |
| Time zone | ET (America/New_York), race's local time; organizer hasn't published a time |
| Distances | Full ~136 mi / 13,000+ ft (two loops), Half ~71 mi; Quarter 39 mi per BikeReg listing |
| Notes | Billed as Pennsylvania's toughest gravel ride. Registration Oct 31, 2026 to Apr 9, 2027 on BikeReg ($120 Full, $99 Half/Quarter), waitlists available. |
| Official site | https://www.mammothendurancegravel.com/ |
| Source | https://www.gravelcalendar.com/events/mammoth-endurance-gravel · confidence: medium |
FAQ
When does MAMMOTH Endurance Gravel 2027 registration open?
Registration opens Oct 31, 2026 (time TBA, ET).
Is MAMMOTH Endurance Gravel a lottery?
No lottery has been announced; registration is open entry.
When is MAMMOTH Endurance Gravel 2027?
May 1, 2027 in Wellsboro, PA.